add uber cache and some streams for test data

package.json

@@ -36,8 +36,9 @@
     "bootstrap-material-design": "4.1.1",
     "bootstrap-notify": "3.1.3",
     "chartist": "0.11.0",
-    "classlist.js": "1.1.20150312",
+    "classlist.js": "^1.1.20150312",
     "core-js": "2.4.1",
+    "event-source-polyfill": "^1.0.5",
     "express": "4.16.3",
     "googleapis": "28.1.0",
     "hammerjs": "2.0.8",
@@ -47,10 +48,11 @@
     "popper.js": "1.14.3",
     "rxjs": "6.3.3",
     "rxjs-compat": "6.3.3",
-    "web-animations-js": "2.3.1",
+    "web-animations-js": "^2.3.1",
     "zone.js": "0.8.26"
   },
   "devDependencies": {
+    "@angular-devkit/build-angular": "~0.6.3",
     "@angular/cli": "6.0.3",
     "@angular/compiler-cli": "7.0.2",
     "@angular/language-service": "7.0.2",
@@ -71,7 +73,6 @@
     "protractor": "5.3.1",
     "ts-node": "5.0.1",
     "tslint": "5.9.1",
-    "typescript": "3.1.6",
+    "typescript": "3.1.6"
-    "@angular-devkit/build-angular": "~0.6.3"
   }
 }

src/app/User.ts

@@ -0,0 +1,43 @@
+interface Claims {
+  // https://openid.net/specs/openid-connect-core-1_0.html#StandardClaims
+  sub?: string;
+  name?: string;
+  given_name?: string;
+  family_name?: string;
+  middle_name?: string;
+  nickname?: string;
+  preferred_username?: string;
+  profile?: string; // url to their profile
+  picture?: string; // url to their image ending in .png, .jpg, etc...
+  website?: string;
+  email: string;
+  email_verified?: boolean;
+  gender?: string; // usually 'male' or 'female'
+  birthdate?: string; // 'yyyy-mm-dd'
+  zoneinfo?: string; // e.g. 'Europe/Paris' or 'America/Los_Angeles'
+  local?: string; // e.g. 'en-US' or 'fr-CA' some implementations us underscore
+  phone_number?: string;
+  phone_number_verified?: boolean;
+  address?: Address;
+  updated_at?: number; // seconds since the epoc when this object was last updated
+}
+
+interface User {
+  claims: Claims;
+  customers: string[];
+}
+
+interface Address {
+  formatted: string;
+  street_address: string;
+  locality: string; // e.g. city
+  region: string; // e.g. state, province, prefecture or region
+  postal_code: string; // zip coed or postal code
+  country: string;
+}
+
+export {
+  User,
+  Claims,
+  Address
+}

src/app/app-modules.service.ts

@@ -2,6 +2,7 @@ import { Injectable } from '@angular/core';
 import { Observable, throwError } from 'rxjs';
 import { catchError } from 'rxjs/operators';
 import { HttpClient, HttpErrorResponse } from '@angular/common/http';
+import { BehaviorSubject } from 'rxjs/BehaviorSubject';
 
 import { AvailableAppModule } from './AppModulesTypes';
 
@@ -9,9 +10,16 @@ import { AvailableAppModule } from './AppModulesTypes';
   providedIn: 'root'
 })
 export class AppModulesService {
+  // default this value to the user's last time logging in
+  private showTestDataSource = new BehaviorSubject<boolean>(true);
+  public showTestData = this.showTestDataSource.asObservable();
 
   constructor(private http: HttpClient) { }
 
+  public toggleShowTestData(newValue) {
+    this.showTestDataSource.next(newValue);
+  }
+
   public getAvailableAppModules() {
     // returns all app modules and indicates the customers for which the user can use the modules
     return this.http.get<AvailableAppModule[]>('/api/v1/modules').pipe(catchError(this.handleError));

src/app/app.module.ts

@@ -12,6 +12,7 @@ import { AppComponent } from './app.component';
 // Services
 import { AppModulesService } from './app-modules.service';
 import { LinkifyService } from './linkify.service';
+import { UberCacheService } from './uber-cache.service';
 
 // Pipes
 import { LinkifyPipe } from './linkify.pipe';

src/app/components/sidebar/sidebar.component.css

@@ -0,0 +1,3 @@
+ul.nav a.test-active, ul.nav a.test-active > i {
+  color: #ff9800
+}

src/app/components/sidebar/sidebar.component.html

@@ -56,11 +56,16 @@
   </div>
     <ul class="nav">
         <li routerLinkActive="active" *ngFor="let menuItem of menuItems" class="{{menuItem.class}} nav-item">
-            <a class="nav-link" [routerLink]="[menuItem.path]">
+            <a *ngIf="menuItem.key !== 'test-data'" class="nav-link" [routerLink]="[menuItem.path]">
                 <i class="fas fa-{{menuItem.icon}}"></i>
                 <!-- <i class="material-icons">{{menuItem.icon}}</i> -->
                 <p>{{menuItem.title}}</p>
             </a>
+            <a *ngIf="menuItem.key === 'test-data'" class="nav-link {{showTestData ? 'test-active' : ''}}" (click)="toggleTestMode()">
+                <i class="fas fa-{{showTestData ? 'toggle-on' : 'toggle-off'}} {{showTestData ? 'test-active' : ''}}"></i>
+                <!-- <i class="material-icons">{{menuItem.icon}}</i> -->
+                <p>{{menuItem.title}}</p>
+            </a>
         </li>
     </ul>
 </div>

src/app/components/sidebar/sidebar.component.ts

@@ -1,6 +1,7 @@
 import { Component, OnInit } from '@angular/core';
 
 import { AppModulesService } from '../../app-modules.service';
+import { ProfileService } from '../../profile.service';
 
 import { AvailableAppModule } from '../../AppModulesTypes';
 import { LinkifyService } from '../../linkify.service';
@@ -11,6 +12,7 @@ declare interface RouteInfo {
   title: string;
   icon: string;
   class: string;
+  key?: string;
 }
 export const ROUTES: RouteInfo[] = [
   {
@@ -55,6 +57,13 @@ export const ROUTES: RouteInfo[] = [
     icon: 'envelope',
     class: ''
   },
+  {
+    path: '/test-data',
+    title: 'View test data',
+    key: 'test-data',
+    icon: 'toggle-on',
+    class: ''
+  },
   // { path: '/table-list', title: 'Table List',  icon: 'content_paste', class: '' },
   // { path: '/typography', title: 'Typography',  icon: 'library_books', class: '' },
   // { path: '/icons', title: 'Icons',  icon: 'bubble_chart', class: '' },
@@ -69,12 +78,26 @@ export const ROUTES: RouteInfo[] = [
   styleUrls: ['./sidebar.component.css']
 })
 export class SidebarComponent implements OnInit {
-  menuItems: any[];
+  public menuItems: any[];
+  public showTestData: boolean = false;
 
   constructor(
     private appModulesService: AppModulesService,
     private linkify: LinkifyService,
-  ) { }
+    private profileService: ProfileService
+  ) {
+    appModulesService.showTestData.subscribe((newValue: boolean) => {
+      this.showTestData = newValue;
+    });
+
+    profileService.currentUser().subscribe((user) => {
+      console.log(user);
+    });
+
+    profileService.currentUser().subscribe((user) => {
+      console.log(user);
+    });
+  }
 
   ngOnInit() {
     this.menuItems = ROUTES.filter(menuItem => menuItem);
@@ -92,10 +115,15 @@ export class SidebarComponent implements OnInit {
     //   // self.appModules = availableModules;
     // });
   }
+
   isMobileMenu() {
     if ($(window).width() > 991) {
       return false;
     }
     return true;
   };
+
+  toggleTestMode() {
+    this.appModulesService.toggleShowTestData(!this.showTestData);
+  }
 }

src/app/profile.service.spec.ts

@@ -0,0 +1,15 @@
+import { TestBed, inject } from '@angular/core/testing';
+
+import { ProfileService } from './profile.service';
+
+describe('ProfileService', () => {
+  beforeEach(() => {
+    TestBed.configureTestingModule({
+      providers: [ProfileService]
+    });
+  });
+
+  it('should be created', inject([ProfileService], (service: ProfileService) => {
+    expect(service).toBeTruthy();
+  }));
+});

src/app/profile.service.ts

@@ -0,0 +1,48 @@
+import { Injectable } from '@angular/core';
+import { Observable, throwError } from 'rxjs';
+import { map, catchError } from 'rxjs/operators';
+import { HttpClient, HttpErrorResponse } from '@angular/common/http';
+
+import { UberCacheService } from './uber-cache.service';
+
+import { User } from './User';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class ProfileService {
+
+  constructor(
+    private http: HttpClient,
+    private uberCache: UberCacheService
+  ) { }
+
+  private requestCurrentUser(): Observable<User> {
+    return this.http.get<UserResponse>('/api/v1/profile/me').pipe(catchError(this.handleError)).pipe(map((res: UserResponse) => res.user));
+  }
+
+  public currentUser(): Observable<User> {
+    return this.uberCache.getRequest(this.requestCurrentUser.bind(this), `/api/v1/profile/events`, 'userUpdated');
+  }
+
+  private handleError(error: HttpErrorResponse) {
+    if (error.error instanceof ErrorEvent) {
+      // client or network error
+      console.error('An error occurred:', error.error.message);
+    } else {
+      // backend returned an error
+      console.error(
+        `Backend returned code ${error.status}, ` +
+        `body was: ${error.error}`
+      );
+    }
+    return throwError(
+      `An eror occurred`
+    );
+  }
+}
+
+interface UserResponse {
+  status: string;
+  user: User
+}

src/app/uber-cache.service.spec.ts

@@ -0,0 +1,15 @@
+import { TestBed, inject } from '@angular/core/testing';
+
+import { UberCacheService } from './uber-cache.service';
+
+describe('UberCacheService', () => {
+  beforeEach(() => {
+    TestBed.configureTestingModule({
+      providers: [UberCacheService]
+    });
+  });
+
+  it('should be created', inject([UberCacheService], (service: UberCacheService) => {
+    expect(service).toBeTruthy();
+  }));
+});

src/app/uber-cache.service.ts

@@ -0,0 +1,63 @@
+import { Injectable } from '@angular/core';
+import { Observable, Subject, merge } from 'rxjs';
+import { switchMap, shareReplay } from 'rxjs/operators';
+
+import { NativeEventSource, EventSourcePolyfill } from 'event-source-polyfill';
+const EventSource = NativeEventSource || EventSourcePolyfill;
+// OR: may also need to set as global property
+// global.EventSource =  NativeEventSource || EventSourcePolyfill;
+
+const CACHE_SIZE = 1;
+
+// Creates a cache of requests that are automatically busted based on server sent events
+
+@Injectable({
+  providedIn: 'root'
+})
+export class UberCacheService {
+  private cache$: CacheStore;
+
+  constructor() {
+    this.cache$ = {};
+  }
+
+  public getRequest<T>(request: ()=>Observable<T>, eventUrl: string, eventName: string): Observable<T> {
+    if (!this.cache$[eventUrl]) {
+      const updateStream = this.createUpdateStream(eventUrl, eventName);
+      const initialCurrentUser$ = request();
+      const reload$ = updateStream.pipe(switchMap(() => request()));
+      const newCache = merge(initialCurrentUser$, reload$).pipe(shareReplay(CACHE_SIZE));
+      this.cache$[eventUrl] = {
+        cache: newCache,
+        stream: updateStream
+      };
+    }
+    return this.cache$[eventUrl].cache;
+  }
+
+  private createUpdateStream(eventUrl: string, eventName: string) {
+    const eventStream = new Subject<void>();
+    const es = new EventSource(eventUrl);
+    es.addEventListener(eventName, (evt: StreamEvent) => {
+      console.log(evt.data);
+      eventStream.next();
+    });
+    return eventStream;
+  }
+}
+
+interface StreamEvent {
+  data?: string;
+  event?: string;
+  id?: string;
+  retry?: number;
+}
+
+interface CacheStore {
+  [name: string]: CacheTools;
+}
+
+interface CacheTools {
+  cache: Observable<any>;
+  stream: Subject<void>;
+}

src/polyfills.ts

@@ -66,3 +66,4 @@ import 'zone.js/dist/zone';  // Included with Angular CLI.
  * Needed for: All but Chrome, Firefox, Edge, IE11 and Safari 10
  */
 // import 'intl';  // Run `npm install --save intl`.
+import 'event-source-polyfill';

yarn.lock

@@ -1690,7 +1690,7 @@ class-utils@^0.3.5:
     isobject "^3.0.0"
     static-extend "^0.1.1"
 
-classlist.js@1.1.20150312:
+classlist.js@^1.1.20150312:
   version "1.1.20150312"
   resolved "https://registry.yarnpkg.com/classlist.js/-/classlist.js-1.1.20150312.tgz#1d70842f7022f08d9ac086ce69e5b250f2c57789"
   integrity sha1-HXCEL3Ai8I2awIbOaeWyUPLFd4k=
@@ -2789,6 +2789,11 @@ etag@~1.8.1:
   resolved "https://registry.yarnpkg.com/etag/-/etag-1.8.1.tgz#41ae2eeb65efa62268aebfea83ac7d79299b0887"
   integrity sha1-Qa4u62XvpiJorr/qg6x9eSmbCIc=
 
+event-source-polyfill@^1.0.5:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/event-source-polyfill/-/event-source-polyfill-1.0.5.tgz#b34be2740a685a8dc65ae750065fc983538ffcfe"
+  integrity sha512-PdStgZ3+G2o2gjqsBYbV4931ByVmwLwSrX7mFgawCL+9I1npo9dwAQTnWtNWXe5IY2P8+AbbPteeOueiEtRCUA==
+
 event-target-shim@^5.0.0:
   version "5.0.1"
   resolved "https://registry.yarnpkg.com/event-target-shim/-/event-target-shim-5.0.1.tgz#5d4d3ebdf9583d63a5333ce2deb7480ab2b05789"
@@ -8545,7 +8550,7 @@ wbuf@^1.1.0, wbuf@^1.7.3:
   dependencies:
     minimalistic-assert "^1.0.0"
 
-web-animations-js@2.3.1:
+web-animations-js@^2.3.1:
   version "2.3.1"
   resolved "https://registry.yarnpkg.com/web-animations-js/-/web-animations-js-2.3.1.tgz#3a6d9bc15196377a90f8e2803fa5262165b04510"
   integrity sha1-Om2bwVGWN3qQ+OKAP6UmIWWwRRA=